Any shortcut to initialize all array elements to zero?

In Java, arrays are zero-initialized by default. Simply declaring new int[10] already sets all numeric elements to 0. If you need to explicitly initialize or re-initialize an array to zero, you can use the Arrays.fill method from the java.util package.

For example, to initialize an array of integers to zero:

import java.util.Arrays;

int[] array = new int[10];
Arrays.fill(array, 0);

This will fill the entire array with the value 0.

You can also use the Arrays.fill method to initialize a part of the array to a specific value.

For example:

int[] array = new int[10];
Arrays.fill(array, 3, 5, 0);

This will fill the elements from index 3 up to, but not including, index 5 with the value 0.

Keep in mind that the Arrays.fill method modifies the original array in place. If you want to create a new array with all elements set to zero using the Java Stream API, you can do the following:

For example:

int[] array = new int[10];
array = Arrays.stream(array).map(x -> 0).toArray();

This will create a new array with all elements set to zero.

You can also use a loop to initialize all elements of the array to zero.

For example:

int[] array = new int[10];
for (int i = 0; i < array.length; i++) {
    array[i] = 0;
}

This will iterate over all elements of the array and set them to zero.